Home / 316,101.24-436,219.70-172,861.38

Finding the Fourth Proportional to 316,101.24, 436,219.70 and 172,861.38

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Solution

The fourth proportional to 316,101.24, 436,219.70 and 172,861.38 is: 238,548.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,101.24 : 436,219.70 = 172,861.38 : x
  2. Step 2: Convert to fraction form
    316,101.24/436,219.70 = 172,861.38/x
  3. Step 3: Cross multiply
    316,101.24x = 436,219.70 × 172,861.38
  4. Step 4: Simplify right side
    316,101.24x = 75,405,538,460.88
  5. Step 5: Solve for x
    x = 75,405,538,460.88/316,101.24
  6. Step 6: Final answer
    x = 238,548.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.